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Finding the Fourth Proportional to 323,703.51, 485,613.59 and 99,059.91

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Solution

The fourth proportional to 323,703.51, 485,613.59 and 99,059.91 is: 148,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,703.51 : 485,613.59 = 99,059.91 : x
  2. Step 2: Convert to fraction form
    323,703.51/485,613.59 = 99,059.91/x
  3. Step 3: Cross multiply
    323,703.51x = 485,613.59 × 99,059.91
  4. Step 4: Simplify right side
    323,703.51x = 48,104,838,024.88
  5. Step 5: Solve for x
    x = 48,104,838,024.88/323,703.51
  6. Step 6: Final answer
    x = 148,607.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.